Problema Solution
A college student works in both the school cafeteria and the library. She works no more than 20 hours per week in the cafeteria and no more than 17 hours per week in the library. She must work at least 20 hours each week.
a)Express the information as a system of inequalities
b)Graph the solution set.
Answer provided by our tutors
let
x = the hours she works in the cafeteria
y = the hours she works in the library
She works no more than 20 hours per week in the cafeteria and no more than 17 hours per week in the library:
x <= 20
y <= 17
She must work at least 20 hours each week:
x + y >= 20
a)Express the information as a system of inequalities:
x <= 20
y <= 17
x + y >= 20
b)Graph the solution set
click here to see the graph: